Thermosafe 460 Operating Instructions

OPERATING INSTRUCTIONS
IMPORTANT: This machine can only be used with a liquid CO
When ordering CO be certain to get liquid CO
2
CO
2
Safety
Valve
CO
2
with a siphon.
2
1. Firmly connect machine hose to CO
supplied. Use plastic washer supplied for inside of hexagonal nut that
attaches to cylinder valve.
2. Ensure nothing obstructs flow of CO
firmly to top fitting on Dry Ice Machine. Pull ring at end of safety valve to
confirm spring-loaded valve can open if pressure exceeds 20 PSI.
3. Open CO
scale (0-20) of gauge. This gives maximum number of ice blocks and
does not waste CO
does not carry snow solids. If there are, close down valve slightly. After
ice builds up in machine, speed up process by opening valve another
degree or two. If needle reaches 10 on inner scale turn valve to off
position.
4. Vapor will discharge through vertical filter slots as dry ice block is
forming. When vapor discharges from space between lid and body of
machine (and sound changes), dry ice block is fully formed.
Immediately close cylinder valve.
The first 1-2 blocks will take slightly longer to process because box and
feed pipe are being cooled to proper temperature. Time then becomes
shorter to produce additional blocks.
Lift Up
5. Open dry ice block machine by loosening latches and folding down
sides. Remove block for use or storage. Caution: always wear
protective gloves when handling dry ice; can cause burns and
frostbite. Blocks can be stored in ThermoSafe
6. During and after making dry ice block, handle feed hose carefully. Hose
will appear white and is frozen. If bent, pulled or twisted, hose can be
damaged or broken.
7. When using 320-lb. CO
"T" in line. Replace pressure gauge with plug from industrial gas dealer.
With larger size cylinder, gauge can become choked with gas and is of
no measuring significance.
cylinder equipped with a built-in siphon (dip tube).
2
cylinder valve no more than 1-2 small divisions on inner
2
. Be sure vapor escaping from vents of machine
2
cylinder, remove pressure gauge from brass
2
cylinder. Tighten with wrench
2
through hose. Attach end of hose
2
®
Insulated Shippers.